System and method for common and ue-specific frequency resource scheduling

ABSTRACT

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure provides a resource scheduling method, which includes: determining, by a UE, a resource allocation indicating way in DCI of a first type search space and a resource allocation indicating way in DCI of a second type search space, performing, by the UE, blind detection for PDCCH/EPDCCH on the bandwidth and the location of all the frequency resources available for the UE frequency resource allocation in the corresponding resource allocation indicating way according to the allocation unit of the UE frequency resource in the corresponding resource allocation indicating way, determining a bandwidth and a location of an uplink resource and/or a downlink resource actually allocated for the UE.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of application Ser. No. 16/305,856,now U.S. Pat. No. 11,212,799, which is a 371 of InternationalApplication No. PCT/KR2017/005611 filed on May 30, 2017, which claimspriority to Chinese Patent Application No. 201610371842.7 filed on May30, 2016, Chinese Patent Application No. 201611008262.8 filed on Nov.16, 2016, Chinese Patent Application No. 201710149997.0 filed on Mar.14, 2017 and Chinese Patent Application No. 201710373245.2 filed on May24, 2017, the disclosures of which are herein incorporated by referencein their entirety.

BACKGROUND 1. Field

The present disclosure relates to radio communication technical fields,and more particularly, to a resource scheduling method and apparatus.

2. Description of Related Art

To meet the demand for wireless data traffic having increased sincedeployment of 4th generation (4G) communication systems, efforts havebeen made to develop an improved 5th generation (5G) or pre-5Gcommunication system. Therefore, the 5G or pre-5G communication systemis also called a ‘Beyond 4G Network’ or a ‘Post Long Term Evolution(LTE) System’.

The 5G communication system is considered to be implemented in higherfrequency (mmWave) bands, e.g., 60 GHz bands, so as to accomplish higherdata rates. To decrease propagation loss of the radio waves and increasethe transmission distance, the beamforming, massive multiple-inputmultiple-output (MIMO), Full Dimensional MIMO (FD-MIMO), array antenna,an analog beam forming, large scale antenna techniques are discussed in5G communication systems.

In addition, in 5G communication systems, development for system networkimprovement is under way based on advanced small cells, cloud RadioAccess Networks (RANs), ultra-dense networks, device-to-device (D2D)communication, wireless backhaul, moving network, cooperativecommunication, Coordinated Multi-Points (CoMP), reception-endinterference cancellation and the like.

In the 5G system, Hybrid frequency shift keying (FSK) and quadratureamplitude modulation (FQAM) and sliding window superposition coding(SWSC) as an advanced coding modulation (ACM), and filter bank multicarrier (FBMC), non-orthogonal multiple access (NOMA), and sparse codemultiple access (SCMA) as an advanced access technology have beendeveloped.

SUMMARY

The present disclosure provides a resource scheduling method andapparatus, in a condition that a UE cannot support the entire systembandwidth, an uplink resource and a downlink resource allocated by abase station can still be appropriately determined.

In order to improve the intention above, the present disclosure providestechnical solutions as follows.

A resource scheduling method includes determining, by a user equipment(UE), a resource allocation indicating way in downlink controlinformation (DCI) of a first type search space and a resource allocationindicating way in DCI of a second type search space, wherein theresource allocation indicating way includes an allocation unit of a UEfrequency resource and a bandwidth and a location of all frequencyresources available for UE frequency resource allocation, in the firsttype search space and the second type search space, performing, by theUE, blind detection for Physical Downlink Control Channel(PDCCH)/Enhanced Physical Downlink Control Channel (EPDCCH) on thebandwidth and the location of all the frequency resources available forthe UE frequency resource allocation in the corresponding resourceallocation indicating way according to the allocation unit of the UEfrequency resource in the corresponding resource allocation indicatingway, determining a bandwidth and a location of an uplink resource and/ora downlink resource actually allocated for the UE.

Preferably, the UE determining the resource allocation indicating way inthe DCI of the first type search space includes determining, by the UE,the resource allocation indicating way in the DCI of the first typesearch space according to common signaling and initial accessinformation transmitted by a base station, or, determining by the UE,the bandwidth and the location of all the frequency resources availablefor the UE frequency resource allocation in the DCI of the first typesearch space according to the common signaling and the initial accessinformation transmitted by the base station, and determining theallocation unit of the UE frequency resource in the DCI of the firsttype search space through pre-configuration, or, determining, by the UE,the resource allocation indicating way in the DCI of the first typesearch space according to the pre-configuration.

Preferably, the UE determining the resource allocation indicating way inthe DCI of the second type search space includes determining, by the UE,the resource allocation indicating way in the DCI of the second typesearch space according to higher layer signaling transmitted by the basestation, or, determining by the UE, the bandwidth and the location ofall the frequency resources available for the UE frequency resourceallocation in the DCI of the second type search space according tohigher layer signaling transmitted by the base station, and determiningthe allocation unit of the UE frequency resource in the DCI of thesecond type search space through the pre-configuration, or, for the DCIof a fallback transmission mode, determining, by the UE, the resourceallocation indicating way in the DCI of the second type search spaceaccording to the common signaling or the initial access informationtransmitted by the base station, or determining the resource allocationindicating way in the DCI of a specific search space same as theresource allocation indicating way in the DCI of the first type searchspace; for the DCI of a non-fallback transmission mode, determining, bythe UE, the resource allocation indicating way in the DCI of the secondtype search space according to the higher layer signaling transmitted bythe base station, or determining the bandwidth and the location of allthe frequency resources available for the UE frequency resourceallocation in the DCI of the second type search space according to thehigher layer signaling transmitted by the base station, and determiningthe allocation unit of the UE frequency resource in the DCI of thesecond type search space through the pre-configuration, or, determiningthe resource allocation indicating way in the DCI of the specific searchspace same as the resource allocation indicating way in the DCI of thefirst type search space.

Preferably, when the UE does not determine the resource allocationindicating way in the DCI of the second type search space, the UEdetermines the resource allocation indicating way in the DCI of thespecific search space same as the resource allocation indicating way inthe DCI of the first type search space.

Preferably, the UE determining the resource allocation indicating way inthe DCI of the first type search space and the resource allocationindicating way in the DCI of the second type search space includesreceiving, by the UE, the common signaling or the initial accessinformation transmitted by the base station, determining frequencyinformation of two or more than two resource allocations, wherein thefrequency information includes bandwidths and locations of all frequencyresources for the resource allocations, using one of the two or morethan two resource allocations for the first type search space accordingto the common signaling or the initial access information, taking abandwidth and a location of all frequency resources for the resourceallocation as the bandwidth and the location of all the frequencyresources available for the UE frequency resource allocation in the DCIof the first type search space, selecting a resource allocation for thesecond type search space from the two or more than two resourceallocations according to a preset regulation, taking a bandwidth and alocation of all the frequency resources for the resource allocation asthe bandwidth and the location of all the frequency resources availablefor the UE frequency resource allocation in the DCI of the second typesearch space.

Preferably, when the resource allocation indicating way for the firsttype search space and the resource allocation indicating way for thefirst type search space are determined, the UE determines the allocationunit of the UE frequency resource in the DCI of the first type searchspace and/or the second type search space according to thepre-configuration.

Preferably, the frequency information includes the allocation unit ofthe UE frequency resource, when the resource allocation indicating wayfor the first type search space and the resource allocation indicatingway for the second type search space are determined, the UE takes theallocation unit of the UE frequency resource used in the resourceallocation for the first type search space as the allocation unit of theUE frequency resource in the DCI of the first type search space; and/ortakes the allocation unit of the UE frequency resource used in theresource allocation for the second type search space as the allocationunit of the UE frequency resource in the DCI of the second type searchspace.

Preferably, the UE determining the resource allocation indicating way inthe DCI of the first type search space and the resource allocationindicating way in the DCI of the first type search space includesreceiving, by the UE, the common signal or the initial accessinformation transmitted by the base station, determining the frequencyinformation of two or more resource allocations, wherein the frequencyinformation includes the bandwidths and the locations of all frequencyresource for the resource allocations, using, by the UE, one of the twoor more than two resource allocations for the first type search space,and taking the bandwidth and the location of all the frequency resourceof the resource allocation as the bandwidth and the location of all thefrequency resource available for the UE frequency resource in the DCI ofthe first type search space, when the DCI of the UE specific searchspace is the DCI of the fallback transmission mode, determining theresource allocation indicating way in the DCI of the UE specific searchspace same as the resource allocation indicating way in the DCI of thefirst type search space; when the DCI of the UE specific search space isthe DCI of the non-fallback transmission mode, select a resourceallocation used for the second type search space from the two or morethan two resource allocations according to the preset regulation, takingthe bandwidth and the location of all the frequency resources for theresource allocation as the bandwidth and the location of all thefrequency resources available for the UE frequency resource allocationin the DCI of the second type search space.

Preferably, when the resource allocation indicating way in the DCI ofthe first type search space is determined, the UE determines theallocation unit of the UE frequency resource allocation in the DCI ofthe first type search space according to the pre-configuration, and/or,when the resource allocation indicating way in the DCI of the secondtype search space is determined and the DCI of the second type searchspace is the non-fallback transmission mode, the UE determines theallocation unit of the UE frequency resource allocation in the DCI ofthe second type search space according to the pre-configuration.

Preferably, the frequency information includes the allocation unit ofthe UE frequency resource, when the resource allocation indicating wayfor the first type search space and the resource allocation indicatingway for the second type search space are determined, the UE takes theallocation unit of the UE frequency resource used in the resourceallocation for the first type search type as the allocation unit of theUE frequency resource in the DCI of the first type search space; and/or,when the DCI of the second type search space is the non-fallbacktransmission mode, the UE takes the allocation unit of the UE frequencyresource used in the resource allocation for the second type search typeas the allocation unit of the UE frequency resource in the DCI of thesecond type search space.

Preferably, the preset regulation includes that the resource allocationthe bandwidth of all the frequency resources of which is largest, and issmaller than or equal to the largest frequency bandwidth supported bythe UE.

Preferably, before the UE determines the resource allocation indicatingway in the DCI of the first type search space, further comprising:determining at least one sub-bandwidth indicated in the DCI of the firsttype search space; wherein the determining the resource allocationindicating way in the DCI of the first type search space comprises:determining a resource allocation indicating way in each sub-bandwidthindicated by the DCI of the first type search space, and/or, before theUE determines the resource allocation indicating way in the DCI of thesecond type search space, further comprising: determining at least onesub-bandwidth indicated in the DCI of the second type search space;wherein the determining the resource allocation indicating way in theDCI of the second type search space comprises: determining a resourceallocation indicating way in each sub-bandwidth indicated by the DCI ofthe second type search space.

Preferably, before the UE determines the resource allocation indicatingway in the DCI of the first type search space, further comprising:determining, by the UE, whether a one-step way or a two-step way is usedfor indicating a frequency resource in the DCI of the first type searchspace according to received system information indication or receivedhigh layer signaling configuration; when determining that the one-stepway is used, directly performing the way that the UE determines theresource allocation indicating way in the DCI of the first type searchspace; when determining that the two-step way is used, before the UEdetermines the resource allocation indicating way in the DCI of thefirst type search space, determining the at least one sub-bandwidthindicated in the DCI of the first type search space, wherein thedetermining the resource allocation indicating way in the DCI of thefirst type search space comprises: determining a resource allocationindicating way in each sub-bandwidth indicated by the DCI of the firsttype search space, and/or, before the UE determines the resourceallocation indicating way in the DCI of the second type search space,further comprising: determining, by the UE, whether a one-step way or atwo-step way is used for indicating a frequency resource in the DCI ofthe second type search space according to received system informationindication or high layer signaling configuration; when determining thatthe one-step way is used, directly performing the way that the UEdetermines the resource allocation indicating way in the DCI of thesecond type search space; when determining that the two-step way isused, before the UE determines the resource allocation indicating way inthe DCI of the second type search space, determining the at least onesub-bandwidth indicated in the DCI of the second type search space,wherein the determining the resource allocation indicating way in theDCI of the second type search space comprises: determining the resourceallocation indicating way in each sub-bandwidth indicated in the DCI ofthe second type search space.

Preferably, when the DCI of the second type search space is DCI with abackoff mode, before the UE determines the resource allocationindicating way in the DCI of the second type search space, furthercomprising: determining the at least one sub-bandwidth indicated in theDCI of the second type search space; wherein the determining theresource allocation indicating way in the DCI of the second type searchspace comprises: determining a resource allocation indicating way ineach sub-bandwidth indicated in the DCI of the second type search space,and/or, when the DCI of the second type search space is DCI with abackoff mode, before the UE determines the resource allocationindicating way in the DCI of the second type search space, furthercomprising: determining, by the UE, whether a one-step way or a two-stepway is used for indicating a frequency resource in the DCI of the secondtype search space according to received system information indication orreceived high layer signaling configuration; when determining that theone-step way is used, directly performing the way that the UE determinesthe resource allocation indicating way in the DCI of the second typesearch space; when determining that the two-step way is used, before theUE determines the resource allocation indicating way in the DCI of thesecond type search space, determining the at least one sub-bandwidthindicated in the DCI of the second type search space, wherein thedetermining the resource allocation indicating way in the DCI of thesecond type search space comprises: determining the resource allocationindicating way in each sub-bandwidth indicated in the DCI of the secondtype search space.

Preferably, wherein the number of PRBs and locations of the PRBsincluded in the at least one sub-bandwidth in the DCI of the first typesearch space or in the DCI of the second type search space are preset,or are indicated by system information, or are determined according tosystem bandwidth.

The present disclosure provides a resource scheduling apparatus, whichincludes an indicating way determining module, a blind detecting moduleand an actual resource determining module. The indicating waydetermining module is configured to determine a resource allocationindicating way in downlink control information (DCI) of a first typesearch space and a resource allocation indicating way in the DCI of asecond type search space, wherein the resource allocation indicating wayincludes an allocation unit of a UE frequency resource and a bandwidthand a location of all frequency resources available for UE frequencyresource allocation. The blind detecting module is configured to in thefirst type search space and the second type search space, perform blinddetection for Physical Downlink Control Channel (PDCCH)/EnhancedPhysical Downlink Control Channel (EPDCCH) on the bandwidth and thelocation of all the frequency resources available for the UE frequencyresource allocation in the corresponding resource allocation indicatingway according to the allocation unit of the UE frequency resource in thecorresponding resource allocation indicating way. And the actualresource determining module is configured to determine a bandwidth and alocation of an uplink resource and/or a downlink resource actuallyallocated for the UE.

It can be seen from above that, according to the present disclosure, aUE determines a resource allocation indicating way in DCI of a firsttype search space and a resource allocation indicating way in DCI of asecond type search space, wherein the resource allocation indicating wayincludes an allocation unit of a UE frequency resource and a bandwidthand a location of all frequency resources available for UE frequencyresource allocation; in the first type search space and the second typesearch space, the UE performs blind detection for PDCCH/EPDCCH on thebandwidth and the location of all the frequency resources available forthe UE frequency resource allocation in the corresponding resourceallocation indicating way according to the allocation unit of the UEfrequency resource in the corresponding resource allocation indicatingway, determining a bandwidth and a location of an uplink resource and/ora downlink resource actually allocated for the UE. According to thetechnical solution above, the resource allocation indicating way isfirstly determined, and then the blind detection is performed for thePDCCH/EPDCCH according to the resource allocation indicating way, sothat when the UE cannot support the entire system bandwidth, the UE canstill determine the range and the unit for the blind detection accordingto the resource allocation indicating way, and can appropriatelydetermine the uplink resource and the downlink resource allocated by thebase station.

The present disclosure is to provide an apparatus and method forresource scheduling. Thus, it is possible to provide an apparatus andmethod for resource scheduling in a condition that a terminal in awireless communication system cannot support the entire systembandwidth.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram illustrating a structure of a frame in afrequency division duplex (FDD) system;

FIG. 2 is a schematic diagram illustrating a structure of a subframe ina LTE system;

FIG. 3 is a basic flowchart illustrating an uplink and downlink resourcescheduling method according to the present disclosure;

FIG. 4 is a schematic diagram illustrating a structure of an uplink anddownlink resource scheduling apparatus according to the presentdisclosure.

FIG. 5 is an example configuration of a terminal in a wirelesscommunication system according to an exemplary embodiment of thedisclosure.

Throughout the drawings, it should be noted that like reference numbersare used to depict the same or similar elements, features, andstructures.

DETAILED DESCRIPTION

In order to make the object, technical solution and merits of thepresent invention clearer, the present invention will be illustrated indetail hereinafter with reference to the accompanying drawings andspecific examples.

In a Long Term Evolution Advanced (LTE-A) system, a length of each radioframe is 10 ms, and the radio frame is equally divided into 10subframes. A downlink Transmission Time Interval (TTI) is defined in asubframe. FIG. 1 is a schematic diagram illustrating a structure of aframe in a Frequency Division Duplex (FDD) system. As shown in FIG. 1,each downlink frame includes two slots, for a normal Cyclic Prefix (CP)length, each slot includes 7 Orthogonal Frequency Division Multiplexing(OFDM) symbols, for an extended CP length, each slot PDCCH/EPDCCHincludes 6 OFDM symbols.

FIG. 2 is a schematic diagram illustrating a structure of a subframe ina LTE system. As shown in FIG. 2, first n OFDM symbols, n=1, 2 or 3, areused for downlink control information transmission, which includes aPhysical Downlink Control Channel (PDCCH) and other control information;additional OFDM symbols are used for Physical Downlink Shared Channel(PDSCH) transmission. A basic granularity for a resource allocation is aPhysical Resource Block (PRB) pair, and a PRB includes 12 successive subcarriers in frequency, and corresponds to a slot in time. Two PRBs intwo slots in a same subframe in a frame are referred to as a PRB pair.In each PRB pair, each resource element (RE) is a minimum unit oftime-frequency resources, i.e., each RE is a subcarrier in frequency,and is an OFDM symbol in time. The RE can be used for differentfunctions, e.g., a part of REs can be respectively used forCell-specific Reference Signal (CRS) transmission, DemodulationReference Signal (DMRS) transmission, Channel StateInformation-Reference Signal (CSI-RS) transmission, PDCCH transmission,PDSCH transmission, etc.

In LTE system, the PDSCH transmission and the PUSCH transmission arescheduled through a PDCCH or an Enhanced Physical Downlink ControlChannel (EPDCCH), where resources for the PDSCH transmission and thePUSCH transmission are allocated through resource allocation signalingin Downlink Control Information (DCI) carried in the PDCCH/EPDCCH, amaximum resource allocated for the PDSCH transmission and the PUSCHtransmission is all PRB pairs in the entire system bandwidth, a minimumresource allocated for the PDSCH transmission and the PUSCH transmissionis a PRB pair. The number of bits of the resource allocation signalingin the PDCCH/EPDCCH is calculated according to the number of the PRBpairs in the entire system bandwidth. For example, when the systembandwidth is 10 MHz, the number of the PRB pairs is equal to 50, and thenumber of the bits of the resource allocation signaling used in thePDCCH/EPDCCH is calculated according to different resource allocationmethods regarding that the number of the PRB pairs is equal to 50.

In LTE system, for the PDCCH transmission, a common search space and aUE specific search space are defined. All UEs can perform demodulationand decoding in the common search space, and only specific UEs canperform demodulation and decoding in the UE specific search space. Aprocess of tracking the PDCCH is performed by trying to performdemodulation and decoding (i.e., blind detection) for common searchspaces of all candidate PDCCHs and a UE specific search common set,performing check through Cyclic Redundancy Check (CRC) scrambled by aRadio Network Temporary Indicator (RNTI) (e.g., C-RNTI), and searchingout the PDCCH scheduled by a base station. The number of candidatePDCCHs of the common search space and UE specific search space is asshown in Table 1. The common search spaces include search spacesaggregation levels of which are 4 and 8 Control Channel Elements (CCE).The UE specific search spaces include search spaces aggregation levelsof which are 1, 2, 4 and 8 Control Channel Elements (CCE). For eachtransmission mode, the UE tracks two different sizes of DCI formats.Thus, for the common search space, the UE tracks 2*(4+2)=12 candidatePDCCHs; for the UE specific search space, the UE tracks 2*(6+6+2+2)=32candidate PDCCHs, where one type is a fallback DCI format, e.g., DCIformat 1A, another type is a normal DCI format, e.g., DCI format1B/1D/2/2A. The scheduling described above is PDSCH scheduling. Further,the scheduling described below is PUSCH scheduling. The PUSCH may bescheduled through the PDCCH in the common search space, or may bescheduled through the PDCCH in the UE specific search space.

TABLE 1 Search Space S_(k) ^((L)) The number of Aggregation Size [thenumber of candidate Type Level L CCEs] PDCCHs M^((L)) UE 1 6 6 Specific2 12 6 4 8 2 8 16 2 Common 4 16 4 8 16 2

The UE specific search space is associated with a user's RNTI and asubframe index, i.e., after the user's RNTI of the UE is determined, thelocation of the CCEs occupied by the UE in the UE specific search spacein the specific subframe is determined.

In LTE system, the UE capability may support the entire systembandwidth. Thus, when determining uplink data resources and downlinkdata resources actually allocated, the UE may perform blind detection inthe entire frequency range in the common search space and the UEspecific search space. However, in a new radio (NR) access technology,as the frequency bandwidth is largely improved, the system bandwidth islargely improved accordingly. However, some UEs may not support suchlarge system bandwidth, and different UEs may support different maximumsystem bandwidths. According to the present disclosure, uplink anddownlink data scheduling methods are researched in conditions that thesupported system bandwidths are different.

In order to implement an intention of the present disclosure, thepresent disclosure provides a resource scheduling method. As shown inFIG. 3, the method includes procedures as follows. Herein, the UE may bereferred as ‘a terminal’ and so on.

At block 301, a UE determines a resource allocation indicating way inDCI of at least one search space (referred to as a first type searchspace herein, e.g., a common search space, this type search space isused to schedule System Information (SIBs), a PDSCH for random access(Msg2), etc.) and a resource allocation indicating way in DCI of anothersearch space (referred to as a second type search space, e.g., a UEspecific search space, a UE-group search space).

The resource allocation indication way includes a frequency resourceallocation unit of the UE (e.g., referred to as a Resource Block Group(RBG), and a sub-carrier space) and bandwidth and locations of allfrequency resources available for frequency resource allocation of theUE, e.g., the location of the frequency resource refers to a centralfrequency of the frequency resource.

At block 302, in the first type search space and the second type searchspace, the UE performs blind detection for PDCCH/EPDCCH according to thecorresponding resource allocation indicating way, and obtains abandwidth and a location of an uplink data resource and/or a downlinkdata resource actually allocated for the UE.

When the blind detection for the PDCCH/EPDCCH is performed, the UEperforms the blind detection for the PDCCH/EPDCCH on the bandwidth andthe location of all the frequency resources available for the UEresource allocation in the first type search space or the second typesearch space according to the determined allocation unit of the UEfrequency resource. After the blind detection is performed, a way sameas an existing way may be used during the processing of determining aresource actually allocated, which is not repeatedly described.

Technical solutions of the present disclosure are further described indetail according to preferable embodiments as follows.

Embodiment 1

In this embodiment, they are respectively described about how todetermine the resource allocation indicating way in the DCI of the firsttype search space and how to determine the resource allocationindicating way in the DCI of the second type search space, so as todetermine a DCI detection way in a corresponding search space.

How to determine the resource allocation way in the DCI of the firsttype search space is firstly described.

First Way:

For the bandwidth and the location of all the frequency resourcesavailable for the UE frequency resource allocation in the resourceallocation indicating way, a determining way includes that the UEreceives the common signaling (e.g., MIB, system information) or initialaccess information transmitted by a base station, obtains the bandwidthand the location of all the frequency resources available for theresource allocation in the DCI of the first type search space byreceiving the common signaling or the initial access information. Forexample, according to the received common signaling or the commoninitial access information, the UE obtains that the system bandwidthavailable for the DCI of the first type search space is 110 PRBs, or 75PRBs, or 50 PRBs, or 25 PRBs, or 15 PRBs, or 6 PRBs, the location ofthese PRBs may be deduced according to the locations of thesynchronization signals, and the bandwidth of each PRB is 180 kHz.

For the allocation unit of the UE frequency resource in the resourceallocation indicating way, there are two determining ways. Onedetermining way is same as that described above, i.e., the UE receivesthe common signaling or the initial access information, and determinesthe allocation unit of the UE frequency resource through the commonsignaling or the initial access information; another determining wayincludes that the allocation unit of the UE frequency resource isdetermined according to pre-configuration, e.g., according to aspecification; another determining way includes that the allocation unitof the UE frequency resource is determined according to the bandwidth ofall the frequency resources for the resource allocation in the DCI ofthe first type search space.

The UE performs the blind detection for the PDCCH of the first typesearch space according to the resource allocation indicating waydetermined above, obtains the number and the location of the uplinkresource and the number of the location of the downlink resourceactually allocated for the UE.

Second Way:

Another determining way includes that the UE determines the resourceallocation indicating way in the first type search space according topre-configuration (e.g., a specification), in particular, includes abandwidth (referred to as a common system bandwidth) and a location ofall frequency resources in the first type search space, and theallocation unit of the UE frequency resource in the first type searchspace. For example, the system bandwidth available for the first typesearch space is preset as 110 PRBs according to the specification, thelocation of the 110 PRBs may be deduced according to the synchronizationsignal, and the bandwidth of each PRB is 180 kHz, and the allocationunit of the UE frequency resource in the DCI of the first type searchspace is further preset as 2PRBs pairs according to the specification.The UE performs the blind detection according to the information, andobtain the bandwidth and the location of the uplink resource and thebandwidth and the location of the downlink resource actually allocatedfor the UE. The number of the blind detections performed for thePDCCH/EPDCCH of the first type search space by the UE is obtained byreceiving the common signaling and the initial access information, or ispreset by the specification. A PDCCH/EPDCCH format of the PDCCH/EPDCCHwhich is blindly detected in the first type search space (including thenumber of bits included in the PDCCH/EPDCCH) is indicated by the commonsignaling, or is obtained through the initial access information, or ispreset through a specification.

The resource allocation indicating way in the DCI of the second typesearch space is described below, and the second type search space may beused for the UE specific search space, or may be used for the UE-groupsearch space.

First Way:

For the bandwidth and the location of all the frequency resourcesavailable for the UE frequency resource allocation in the resourceallocation indicating way, a first determining way includes that the UEreceives higher layer signaling transmitted by the base station, obtainsthe bandwidth (which may be referred to as the UE specific systembandwidth) and the location of all the frequency resources available forthe resource allocation in the DCI of the second search space. Forexample, the configuration information through the higher layersignaling indicates that the system bandwidth available for the DCI ofthe second type search space is 110 PRBs, the configuration informationthrough the higher layer signaling further indicates the location ofthese 110 PRBs, and the bandwidth of each PRB is 180 kHz.

For the allocation unit of the UE frequency resource in the resourceallocation indicating way, there are two determining ways. Onedetermining way is same as that described above, i.e., the UE receivesthe higher layer signaling transmitted by the base station, anddetermines the allocation unit of the UE frequency resource throughindication of the higher layer signaling; another determining wayincludes that the allocation unit of the UE frequency resource isdetermined according to the pre-configuration, e.g., according to aspecification; another determining way includes that the allocation unitof the frequency resource is determined according to the bandwidth ofall the frequency resources for the resource allocation in the DCI ofthe second type search space.

The UE performs the blind detection for the PDCCH of the second typesearch space according to the determined resource allocation indicatingway, obtains the bandwidth and the location of the uplink resourceactually allocated for the UE and the bandwidth and the location of thedownlink resource actually allocated for the UE. The number of the blinddetections performed for the PDCCH/EPDCCH of the second type searchspace by UE is configured through the higher layer signaling, or ispreset through the specification. The PDCCH/EPDCCH format of thePDCCH/EPDCCH which is blindly detected by the UE in the second typesearch space (including the number of bits included in the PDCCH/EPDCCH)is configured by the higher layer signaling, or is preset by thespecification.

Second Way:

The second type search space includes two configuration transmissionmodes, one is referred to as a fallback transmission mode (e.g., a DCIformat 1A), and the other one is referred to as a non-fallbacktransmission mode (e.g., a DCI format 1D, a DCI format 2, a DCI format2A).

For the fallback transmission mode, the UE directly takes the resourceallocation indicating way in the DCI of the first type search space asthe resource allocation indicating way in the DCI of the specific searchspace, i.e., the resource allocation indicating way in the DCI of thefirst type search space and the DCI of the second type search space aresame.

Since the second type search space includes the fallback transmissionmode and the non-fallback transmission mode, the second type searchspace is the UE specific search space, and further includes the UE-groupsearch space, the UE-group search space is for a group of UEs, e.g., apower control command is transmitted through the UE-group search space,or some indications are transmitted through the UE-group search space,or some data may be scheduled, e.g., for system reconfiguration, thedata transmitted in the search space is small, in order to reduce thenumber of times of blind detection, the fallback transmission mode inthe UE specific search space and the UE-group search space may use asame DCI format as far as possible. Resource allocation indicating waysfor these search spaces are described as below.

For the fallback transmission mode, the transmission mode is mainly usedfor system reconfiguration, the scheduled data is small, in addition,the mode requires high reliability for DCI transmission, thus, thebandwidth of the resource may be small, and the number of bits forresource allocation is small, however, the central frequency may besame, when the UE detects simultaneously the two transmission modes,implementation complexity is small, and a resource allocation unit(i.e., RBG) may be same with the non-fallback transmission mode. For thenon-fallback mode, the frequency resource allocated for the UE isgreatly large, when the allocation unit of the frequency resource samewith the fallback transmission mode is used, the number of the bits ofthe frequency resource allocation indication is greatly large, thus, thefrequency resource allocation unit of the UE for the non-fallbacktransmission mode may be greatly large, thus, bits used for thefrequency resource allocation indication may be saved. Time forswitching between different search spaces may be reduced because thecentral frequency is same.

In addition, since the UE receives a UE-group common command, e.g., aUE-group power control command, the UE-group power control command isreceived every time slot, since the number of bits of the UE-group DCIis small, in order to reduce the complexity that the UE blindly detectsthe DCI, the number of bits of the DCI for the fallback transmissionmode may be same as that of the UE-group DCI. Thus, the fallbacktransmission mode may use the UE specific search space.

Thus, the bandwidth of the frequency resource and the frequency resourceallocation unit of the UE for the fallback transmission mode may bedetermined independently from the bandwidth of the frequency resourceand the frequency resource allocation unit of the UE for thenon-fallback transmission mode, e.g., configuration is performed throughindependent higher layer signaling. The number of bits of DCI of theUE-group search space is similar as that of the UE specific searchspace, and only one search space may be used, so as to further reducethe number of times of blind detection.

For the non-fallback transmission mode, the determining way for thebandwidth and the location of all the frequency resources available forthe UE frequency resource allocation in the resource allocationindicating way includes that: the UE receives the higher layer signalingtransmitted by the base station, obtains the bandwidth (referred as tothe system bandwidth) and the location of all the frequency resourcesavailable for the resource allocation in the DCI of the second typesearch space through the indication of the higher layer signaling, e.g.,the configuration information through the higher layer signalingindicates that the system bandwidth available for the DCI of the secondtype search space is 110 PRBs, the configuration information through thehigher layer signaling further indicates the location of the 110 PRBs,and the bandwidth of each PRB is 180 kHz. The allocation unit of the UEfrequency resource in the resource allocation indicating way may bedetermined according to the higher layer signaling transmitted by thebase station, or may be determined according to the pre-configuration(e.g., may be preset according to the specification).

The UE perform the blind detection for the PDCCH of the second typesearch space according to the determined resource allocation indicatingway, obtains the bandwidth and the location of the uplink resourceactually allocated for the UE and the bandwidth and the location of thedownlink resource actually allocated for the UE.

Third Way:

In this way, a resource allocation way for the DCI of the second typesearch space may be determined same as that for the first type searchspace.

Alternatively, when the resource allocation indicating way for the DCIof the second type search space is not determined according to a presetway, e.g., when the UE does not receive the higher layer signaling usedfor indicating the resource allocation indicating way in the DCI of thesecond search space, the resource allocation indicating way in the DCIof the second type search space is determined same as the resourceallocation indicating way in the DCI of the first type search space.

During the processing above, the resource allocation indicating way inthe DCI of the first type search space and the resource allocationindicating way in the DCI of the second type search space are basicallyindependent from each other. Two ways are provided below, in which theresource allocation indicating way in the DCI of the first type searchspace and the resource allocation indicating way in the DCI of thesecond type search space are respectively indicated through the commonsignaling or the initial access information indication.

First Way:

The UE receives the common signaling or the initial access informationtransmitted from the base station to the UE, and obtains bandwidths(referred as to system bandwidth) and locations of all frequencyresources for two or more than two resource allocations. A bandwidth(referred as to system bandwidth) and a location of all frequencyresources for a resource allocation are used for the resource allocationin the DCI of the first type search space, and are taken respectively asthe bandwidth and the location of all the frequency resources availablefor the UE frequency resource allocation in the DCI of the first typesearch space. Which resource allocation is used for the DCI of the firsttype search space may be determined through the common signaling or theinitial access information, or may be determined through thepre-configuration. For the resource allocation in the DCI of the secondtype search space, a resource allocation may be selected from the two ormore than two resource allocations obtained by using the commonsignaling or the initial access information according to a presetregulation, and the bandwidth and the location of all the frequencyresources for the resource allocation is taken as the bandwidth and thelocation of all the frequency resources available for the UE frequencyresource allocation in the second type search space. The detail presetregulation may be set according to requirements, e.g., the presetregulation may include that the resource allocation the bandwidth of allthe frequency resources of which is largest, and is smaller than orequal to a maximum frequency bandwidth supported by the UE.

The allocation unit of the UE frequency resource in the DCI of the firsttype search space and the allocation unit of the UE frequency resourcein the DCI of the second type search space may be determined accordingto the pre-configuration (e.g., a fixed allocation unit of the UEfrequency resource is preset in a specification), or may be determinedaccording to the common signaling or the initial access informationabove. In particular, when the bandwidths (referred as to the systembandwidth) and the locations of all the frequency resources for the twoor more than two resource allocations are obtained from the commonsignaling or the initial access information, the allocation unit of theUE frequency resource in the two or more than two resource allocationsis indicated at the same time. Based on this, for the resourceallocation used for the DCI of the first type search space, theallocation unit of the UE frequency resource for the resource allocationis taken as the allocation unit of the UE frequency resource in the DCIof the first type search space; for the resource allocation used for theDCI of the second type search space, the allocation unit of the UEfrequency resource for the resource allocation is taken as theallocation unit of the UE frequency resource in the DCI of the secondtype search space.

It can be seen from above that, the frequency information of two or morethan two resource allocation is obtained according to the indication ofthe common signaling or the initial access information, the frequencyinformation may include the bandwidth and the location of all thefrequency resources, preferably, further includes the allocation unit ofthe UE frequency resource.

Second Way:

The UE receives the common signaling and the initial access informationtransmitted from a base station to the UE, obtains the frequencyinformation of the two or more resource allocations through the commonsignaling and the initial access information. The frequency informationof the resource allocation is same as that in the first way above, whichis not described repeatedly herein. For the resource allocationindicating way in the DCI of the first type search space, thedetermining way is same as that for the first type search space in thefirst way above, which is not described repeatedly herein.

For the second type search space, the DCI includes two configurationtransmission modes, one is referred to as a fallback transmission mode(e.g., DCI format 1A), and the other is referred to as a non-fallbacktransmission mode (e.g., DCI format 1D, DCI format 2, DCI format 2A).

For the fallback transmission mode, the resource allocation indicatingway in the DCI of the second type search space is determined same as theresource allocation indicating way in the DCI of the first search space.

For the non-fallback transmission mode, the resource allocationindicating way is determined same as the resource allocation indicatingway in the DCI of the second search space in the first way above, whichis not repeatedly described herein.

According to the multiple ways described above, the resource allocationindicating way in the DCI of the first type search space and the secondtype search space can be determined. Next, according to the determinedresource allocation indicating ways, the DCI detection way isdetermined, i.e., in the first type search space and the second typesearch space, the PDCCH/EPDCCH is blindly detected according to thecorresponding resource allocation indicating way. Lastly, according to ablind detection result, the bandwidth and the location of the uplinkand/or downlink resources actually allocated for the UE are determined.

Embodiment 2

There are two methods for indicating a frequency resource in DCI. Amethod includes performing indication through one step, i.e., the numberand locations of PRBs in allocated system bandwidth or configuredbandwidth are directly indicated, Another method includes performingindication through two steps together, in a first step, a sub-bandwidth(also referred to as band part (BP)) in the system bandwidth or theconfigured bandwidth is indicated, in a second step, the number and thelocations of the PRBs in the BP indicated in the first step areindicated. For the UE supporting limited bandwidth, by using the methodthat two steps are performed together to indicate the frequency resourcecan save information bit overhead. The one or more sub-bandwidths may beindicated in the first step, when multiple sub-bandwidths are indicated,the number and the locations of the PRBs in each BP are indicated in thesecond step.

It is described below whether a one-step way or a two-step way is usedfor the resource allocation in the DCI of the first type search space orthe DCI of the second type search space.

There are some methods for the DCI of the first type search space.

Method 1:

A one-step indicating way is used for allocating a frequency resourcefor scheduling a PUSCH or a PDSCH in the DCI of the first type searchspace. Since different UEs supports different bandwidth capabilities,and a base station may not know a bandwidth capability supported by a UEjust accessing a system, it is not required for the UE to use thetwo-step indicating way. An allocation unit of the frequency resource ofthe UE and bandwidths and locations of all frequency resources availablefor frequency resource allocation of the UE may be obtained through amethod in embodiment 1.

Actually, the processing in the method is to independently perform acorresponding processing way in embodiment 1 above.

Method 2:

A two-step indicating way is used for allocating a frequency resourcefor scheduling a PUSCH or a PDSCH in the DCI of the first type searchspace. In a first step, at least one BP indicated by the DCI isdetermined, wherein the number of the PRBs included in the BP is presetthrough a specification, or is indicated through system information (thesystem information herein includes a main system block (MIB) or a systeminformation block (SIB)). The number of the PRBs occupied by each BP inthe first step and locations of the PRBs may be preset through aspecification, or is indicated through system information (the systeminformation herein includes a MIB or a SIB), or is deduced throughsystem bandwidth (or determined according to minimum bandwidth). In asecond step, a resource allocation indicating way for each BP in thefirst step is determined, wherein an allocation unit of a frequencyresource of the UE in each BP and bandwidths and locations of allfrequency resources available for frequency resource allocation of theUE may be obtained through the method in embodiment 1.

The processing in the method is to increase sub-bandwidth indicatingprocessing based on the processing above in embodiment 1, accordingly, aresource allocation indicating way in the DCI of the first type searchspace in embodiment 1 is a resource allocation indicating way in acorresponding sub-bandwidth.

Method 3:

One of the one-step indicating way and the two-step indicating way isused for allocating a frequency resource for scheduling a PUSCH or aPDSCH in the DCI of the first type search space through systeminformation indication or by high layer signaling configuration. Whenthe two-step indicating way is used, in a first step, at least one BPindicated in the DCI is determined. The number of the PRBs included inthe BP is preset in specification, or is indicated by the systeminformation (the system information herein includes a MIB or a SIB), oris deduced according to the system bandwidth. In a second step, aresource allocation indicating way in each BP in the first step isdetermined, wherein an allocation unit of a frequency resource of the UEin each BP and bandwidths and locations of all frequency resourcesavailable for frequency resource allocation of the UE may be obtainedthrough the method in embodiment 1.

For the first type search space, the UE may presets the BP used forPDSCH transmission of the first type search space throughspecifications, or determines the BP used for PDSCH transmission of thefirst type search space according to system bandwidth, a systemfrequency band range, etc., when there are multiple BPs, information inMIB indicates which BP is scheduled for the PDSCH transmission by theDCI of the first type search space, or the BP scheduled for the PDSCHtransmission by the DCI of the first type search space is the BP wherethe PBCH and the synchronization signaling is located.

For the first type search space, the BP for DCI transmission may be theBP where the PBCH and the synchronization signaling is located, or maybe information indication in the MIB.

For the first type search space, the BP for DCI transmission may be in asame BP with the transmission of the PDSCH scheduled by the DCI of thefirst type search space, thus, the BP where the PDSCH is located may benot directly indicated in the DCI, implementation according to thismethod is simple; when the BP for DCI transmission may be not in thesame BP with the transmission of the PDSCH scheduled by the DCI of thefirst type search space, the BP where the PDSCH is located may bedirectly indicated in the DCI, according to this method, frequencydiversity gain may be improved through scheduling according toperformance of different BPs.

There are some methods for the DCI of the second type search space.

Method 1:

A two-step indicating way is used for allocating a frequency resourcefor scheduling a PUSCH or a PDSCH in the DCI of the second type searchspace. In a first step, at least one BP indicated by the DCI isdetermined, wherein the number of the PRBs included in the BP is presetthrough a specification, or is indicated through system information (thesystem information herein includes a main system block (MIB) or a systeminformation block (SIB)), or is deduced through system bandwidth, or isconfigured through high layer signaling. In a second step, a resourceallocation indicating way in each BP in the first step is determined,wherein an allocation unit of a frequency resource of the UE in each BPand bandwidths and locations of all frequency resources available forfrequency resource allocation of the UE may be obtained through themethod in embodiment 1.

The processing in the method is to increase sub-bandwidth indicatingprocessing based on the processing above in embodiment 1, accordingly, aresource allocation indicating way in the DCI of the second type searchspace in embodiment 1 is a resource allocation indicating way in acorresponding sub-bandwidth.

For the second search space, the UE may receive higher layer signalingto determine to configure at least one BP for the UE, when multiple BPsare configured for the UE, by receiving physical layer signaling orMedia Access Control layer signaling, it is determined which configuredBP is activated, e.g., the UE is configured with three BPs, BP1, BP2,BP3, since bandwidth processing of the UE is limited, the UE mayactivate one of the BP1, BP2, BP3 through the physical layer signalingor the Media Access Control layer signaling.

Method 2:

One of the one-step indicating way and the two-step indicating way isused for allocating a frequency resource for scheduling a PUSCH or aPDSCH in the DCI of the second type search space through high layersignaling configuration. When the two-step indicating way is used, in afirst step, at least one BP indicated in the DCI is determined. Thenumber of the PRBs included in the BP is preset in specification, or isindicated by the system information (the system information hereinincludes a MIB or a SIB), or is deduced according to the systembandwidth, or is configured through high layer signaling. In a secondstep, a resource allocation indicating way in each BP in the first stepis determined, wherein an allocation unit of a frequency resource of theUE in each BP and bandwidths and locations of all frequency resourcesavailable for frequency resource allocation of the UE may be obtainedthrough the method in embodiment 1. When the one-step way is used, anallocation unit of a frequency resource of the UE in each BP andbandwidths and locations of all frequency resources available forfrequency resource allocation of the UE may be obtained through themethod in embodiment 1.

Method 3:

For the second type search space, there are two kinds of transmissionconfiguration mode for the DCI, one may be referred to as backofftransmission mode (e.g., DCI format 1A), the other one may be referredto as non-backoff transmission mode (e.g., DCI format 1D, DCI format 2,DCI format 2A, etc.).

For the backoff transmission mode, the two-step indicating way is usedfor allocating a frequency resource for scheduling a PUSCH or a PDSCH inthe DCI of the second type search space. In a first step, at least oneBP indicated by the DCI is determined, wherein the number of the PRBsincluded in the BP is preset through a specification, or is indicatedthrough system information (the system information herein includes a MIBor a SIB), or is deduced through system bandwidth, or is configuredthrough high layer signaling. In a second step, a resource allocationindicating way for each BP in the first step is determined, wherein anallocation unit of a frequency resource of the UE in each BP andbandwidths and locations of all frequency resources available forfrequency resource allocation of the UE may be obtained through themethod in embodiment 1.

For the non-falloff transmission mode, one of the one-step indicatingway and the two-step indicating way is used for allocating a frequencyresource for scheduling a PUSCH or a PDSCH in the DCI of the second typesearch space through high layer signaling configuration. When thetwo-step indicating way is used, in a first step, at least one BPindicated in the DCI is determined, wherein the number of the PRBsincluded in the BP is preset in specification, or is indicated by thesystem information (the system information herein includes a MIB or aSIB), or is deduced according to the system bandwidth, or is configuredthrough high layer signaling. In a second step, a resource allocationindicating way in each BP in the first step is determined, wherein anallocation unit of a frequency resource of the UE in each BP andbandwidths and locations of all frequency resources available forfrequency resource allocation of the UE may be obtained through themethod in embodiment 1. When the one-step way is used, an allocationunit of a frequency resource of the UE in each BP and bandwidths andlocations of all frequency resources available for frequency resourceallocation of the UE may be obtained through the method in embodiment 1.

The detail implementation for the resource scheduling method accordingto the present disclosure has been described above. The presentdisclosure further provides a resource scheduling apparatus. FIG. 4 is aschematic diagram illustrating a basic structure of the apparatus. Asshown in FIG. 4, the apparatus includes: an indicating way determiningmodule 410, a blind detecting module 420 and an actual resourcedetermining module 430.

The indicating way determining module 410 is configured to determine aresource allocation indicating way in DCI of a first type search spaceand a resource allocation indicating way in the DCI of a second typesearch space, wherein the resource allocation indicating way comprisesan allocation unit of a UE frequency resource and a bandwidth and alocation of all frequency resources available for UE frequency resourceallocation. The blind detecting module 420 is configured to in the firsttype search space and the second type search space, perform blinddetection for PDCCH/EPDCCH on the bandwidth and the location of all thefrequency resources available for the UE frequency resource allocationin the corresponding resource allocation indicating way according to theallocation unit of the UE frequency resource in the correspondingresource allocation indicating way. And the actual resource determiningmodule 430 is configured to determine a bandwidth and a location of anuplink resource and/or a downlink resource actually allocated for theUE.

FIG. 5 illustrates an example configuration of a terminal in a wirelesscommunication system according to an exemplary embodiment of thedisclosure. FIG. 5 illustrates an example of a configuration of theapparatus of FIG. 4 or the UE. Hereinafter, the term “unit” or the termending with the suffix “-er” or “-or” refer to a unit for processing atleast one function or operation and these terms may be implemented byusing hardware or software or a combination of hardware and software.Referring to FIG. 5, the terminal includes a communication unit 510, astorage 520, and a controller 530.

The communication unit 510 performs functions for transmitting andreceiving signals via a radio channel. For example, the communicationunit 510 performs a function of converting between a baseband signal anda bit string according to a physical layer standard of a system. Forexample, when transmitting data, the communication unit 510 generatescomplex symbols by encoding and modulating a transmission bit string. Inaddition, when receiving data, the communication unit 510 restores areception bit string by demodulating and decoding a baseband signal. Inaddition, the communication unit 510 up-converts a baseband signal intoan RF band signal and then transmit the RF band signal through anantenna, and down-converts an RF band signal received through theantenna into a baseband signal. For example, the communication unit 510may include a transmission filter, a reception filter, an amplifier, amixer, an oscillator, a DAC, an ADC, or the like.

The communication unit 510 transmits and receives signals as describedabove. Accordingly, the communication unit 510 may be referred to as atransmission interface, a reception interface, a transmission andreception interface, a transmitter, a receiver or a transceiver. Inaddition, in the following description, transmitting and receivingperformed through a radio channel may include processing by thecommunication unit 510 as described above.

The storage 520 stores data such as a basic program for the operation ofthe terminal, an application program, setting information, or the like.The storage 520 may be configured by a volatile memory, a nonvolatilememory, or a combination of a volatile memory and a nonvolatile memory.In addition, the storage 520 provides stored data in response to arequest of the controller 530.

The controller 530 controls overall operations of the terminal. Forexample, the controller 530 transmits and receives signals through thecommunication unit 510. In addition, the controller 530 records andreads data on and from the storage 520. To achieve this, the controller530 may include at least one processor or microprocessor or may be apart of the processor. In addition, a part of the communication unit 510and the controller 530 may be referred to as a communication processor(CP). In particular, the controller 530 may perform D2D signaling forpositioning of the terminal and may measure information related to theD2D signal according to various exemplary embodiments which will bedescribed below. For example, the controller 530 may control theterminal to perform a procedure according to various exemplaryembodiments which will be described below. The controller 530 maycomprises at least one of the indicating way determining module 410, ablind detecting module 420 and an actual resource determining module430.

The foregoing is only preferred examples of the present invention and isnot used to limit the protection scope of the present invention. Anymodification, equivalent substitution and improvement without departingfrom the spirit and principle of the present invention are within theprotection scope of the present invention.

What is claimed is:
 1. A method for operating a user equipment (UE) in awireless communication system, the method comprising: receiving, from abase station, first information on a number of at least one bandwidthpart (BWP) and second information associated with at least one BWPidentifier; receiving, from the base station, downlink controlinformation (DCI) including an indicator and resource information;identifying frequency domain resources based on the resource informationand a BWP indicated by the indicator in the DCI from among the at leastone BWP according to the second information; and transmitting uplinkdata on a physical uplink shared channel (PUSCH) using the frequencydomain resources.
 2. The method of claim 1, wherein the at least one BWPcomprises a first BWP for a first type search space excluding a secondBWP for a second type search space indicated in system information. 3.The method of claim 2, wherein the DCI is received in the first typesearch space.
 4. The method of claim 1, wherein each of the at least oneBWP corresponds to each of the at least one BWP identifier, and theindicator in the DCI indicates one of the at least one BWP identifier.5. The method of claim 2, wherein, when the DCI is received in thesecond type search space, the at least one BWP includes the second BWPindicated in the system information.
 6. The method of claim 1, furthercomprising: receiving information for a resource block groupcorresponding to the frequency domain resources.
 7. A user equipment(UE) in a wireless communication system, the UE comprising: at least onetransceiver; and at least one processor operably coupled to the at leastone transceiver, and configured to: receive, from a base station, firstinformation on a number of at least one bandwidth part (BWP) and secondinformation associated with at least one BWP identifier, receive, fromthe base station, downlink control information (DCI) including anindicator and resource information, identify frequency domain resourcesbased on the resource information and a BWP indicated by the indicatorin the DCI from among the at least one BWP according to the secondinformation, and transmit uplink data on a physical uplink sharedchannel (PUSCH) using the frequency domain resources.
 8. The UE of claim7, wherein the at least one BWP comprises a first BWP for a first typesearch space excluding a second BWP for a second type search spaceindicated in system information.
 9. The UE of claim 8, wherein the DCIis received in the first type search space.
 10. The UE of claim 7,wherein each of the at least one BWP corresponds to each of the at leastone BWP identifier, and the indicator in the DCI indicates one of the atleast one BWP identifier.
 11. The UE of claim 8, wherein, in case of theDCI received in the second type search space, the at least one BWPincludes the second BWP indicated in the system information.
 12. The UEof claim 7, wherein the at least one processor is further configured to:receive information for a resource block group corresponding to thefrequency domain resources.